Final answer:
The Barbary Wars resulted in the end of tribute payments to Barbary pirates and the United States securing safe passage for its vessels in the Mediterranean.
Step-by-step explanation:
The correct statements describing the effects of the Barbary Wars are:
- The wars resulted in the end of tribute payments to Barbary pirates. The United States and other countries involved in the wars successfully fought against the Barbary pirates and stopped paying them tributes, which had been a source of income for the pirates.
- The United States secured safe passage for its vessels in the Mediterranean. As a result of the Barbary Wars, the United States negotiated treaties with the Barbary States, ensuring safe passage for American vessels in the Mediterranean Sea.
The question asks about the effects of the Barbary Wars, which were conflicts between the United States and the Barbary states of North Africa in the early 19th century. The correct statement describing the effects of the Barbary Wars is 'd) The United States secured safe passage for its vessels in the Mediterranean.'
This was a principal outcome of the wars, ensuring American trade ships could travel without paying tribute to the Barbary pirates. While the conflicts did not lead to an increase in piracy (a), they did result in the cessation of tribute payments to the Barbary pirates (c), and they did not result in European nations gaining control over the Barbary States (b), as that happened later due to European colonialism.
Therefore answer is c) The wars resulted in the end of tribute payments to Barbary pirates.